[CLN] Remove pulsar from python codebase (#1932)

## Description of changes

*Summarize the changes made by this PR.*
 - Improvements & Bug fixes
	 - Removes pulsar from the python codebase
 - New functionality
	 - None

## Test plan
*How are these changes tested?*
- [x] Tests pass locally with `pytest` for python, `yarn test` for js,
`cargo test` for rust

## Documentation Changes
None

chromadb/config.py

@@ -146,10 +146,6 @@ def empty_str_to_none(cls, v: str) -> Optional[str]:
 
     chroma_server_nofile: Optional[int] = None
 
-    pulsar_broker_url: Optional[str] = None
-    pulsar_admin_port: Optional[int] = 8080
-    pulsar_broker_port: Optional[int] = 6650
-
     chroma_server_auth_provider: Optional[str] = None
 
     @validator("chroma_server_auth_provider", pre=True, always=True, allow_reuse=True)